4B1x family

The 4B1x family are all alluminum 4 cylinder engines designed by Mitsubishi, Hyundai and DaimlerChrysler under the Global Engine Manufacturing Alliance (GEMA). Mitsubishi's engines are built at Shiga in Japan. All feature double overhead chain driven camshafts with four valves per cylinder and MIVEC on both intake and exhaust valves.

4B11 Turbo

The 4B11 Turbo is a turbo-charged version of the 4B11. It has a lower compression ratio of 9:1. The engine doesn't use balance shafts. The 4B11 Turbo is equipped with a single-scroll turbo for the Lancer Ralliart and a larger twin-scroll turbo for the Evolution.

In the CJ Lancer Ralliart, the engine outputs 177kW at 6000 rpm and 343 Nm at 4750 rpm.
In the Evolution X, the engine outputs 217 kW at 6500 rpm and 366 Nm at 3500 rpm.

4B12

The 4B12 was the first 4B1x series engine to arrive on the Australian market, debuting in the ZG Outlander.

The 4B12 is a 2.4 Litre engine displacing 2359 cc. It has a 88.0 mm x 97.0 mm bore and stroke with a 10.5:1 compression ratio. Power output is 125 kW at 6250 rpm and torque is 226 Nm at 4100 rpm.